71560161 has 12 divisors (see below), whose sum is σ = 103822992. Its totient is φ = 47495256.

The previous prime is 71560147. The next prime is 71560171. The reversal of 71560161 is 16106517.

It is not a de Polignac number, because 71560161 - 2¹⁷ = 71429089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71560171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15471 + ... + 19556.

It is an arithmetic number, because the mean of its divisors is an integer number (8651916).

Almost surely, 2^71560161 is an apocalyptic number.

It is an amenable number.

71560161 is a deficient number, since it is larger than the sum of its proper divisors (32262831).

71560161 is a wasteful number, since it uses less digits than its factorization.

71560161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35260 (or 35257 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 71560161 is about 8459.3239091549. The cubic root of 71560161 is about 415.1679022543.

Adding to 71560161 its reverse (16106517), we get a palindrome (87666678).

The spelling of 71560161 in words is "seventy-one million, five hundred sixty thousand, one hundred sixty-one".